If he thinks driving cars in cities is the easiest problem, he does not have experience driving a car in a European city with lots of cyclists and pedestrians.
Driving a car in inner Copenhagen is a stressful situation due to the insane number of cyclist you have to watch out for, see https://youtu.be/FaySp9i2zMA?t=113
Driving a car in inner Copenhagen is a stressful situation due to the insane number of cyclist you have to watch out for, see https://youtu.be/FaySp9i2zMA?t=113